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Kyphosis Bracing
Hyperextension Brace
A surgeon's overview of hyperextension bracing for spinal fractures — how it works, where it helps, and what the evidence shows.
A hyperextension brace is used to support the spine after certain fractures, holding it in an extended position to protect the injury while it heals. As a spinal surgeon I judge whether a brace is appropriate after a fracture and monitor healing; the fitting is the work of an orthotist. This page explains what hyperextension braces are, how they work, and what the evidence tells us about their role.
For information only — not medical advice. The content on this page is patient education to help you understand a condition or treatment. It is not a substitute for personalised assessment by a qualified clinician. Always consult your doctor or specialist about your own symptoms, diagnosis, and treatment decisions.
What a hyperextension brace is
Hyperextension brace is an umbrella term for orthoses that hold the thoracolumbar spine in extension and prevent forward bending. The best-known example is the Jewett brace, a three-point metal-frame design, but the category also includes similar cruciform anterior spinal hyperextension (so-called CASH) braces and related devices. What they share is a design that resists flexion and encourages an upright, extended posture, rather than fully enclosing the trunk like a moulded body jacket.
How it works
The principle is to protect a healing fracture from forward-bending forces. Vertebrae most often collapse further under flexion loads, so a brace that keeps the spine extended reduces those loads on the injured segment. This is intended to stabilise the fracture, control pain, allow the person to get up and move sooner, and discourage a stooped posture during healing. Hyperextension braces are aimed at the thoracolumbar region, where this kind of compression fracture is most common.
Who it is for
Hyperextension bracing is generally considered for adults with stable thoracolumbar fractures — including osteoporotic vertebral compression fractures — where the spine is judged stable but external support may aid comfort and confidence during healing. It is not appropriate for unstable injuries, which require different treatment. In frail or osteoporotic patients the fit and tolerability of any brace need particular care. Whether a hyperextension brace is appropriate is a specialist decision based on the fracture type, stability and the individual.
What the evidence shows
The evidence for hyperextension bracing after stable fractures is mixed, and honesty here matters. Review articles and management guidance list hyperextension orthoses among the accepted conservative options for osteoporotic and stable thoracolumbar fractures, valued for stabilising the segment, easing pain and enabling earlier mobilisation. Studies pairing bracing with a period of rest and rehabilitation report it to be safe and feasible. At the same time, a systematic review of orthoses for thoracolumbar fractures and other comparative work have found that, for stable compression and some burst fractures, results with and without a brace are broadly similar. The reasonable conclusion is that a hyperextension brace is a helpful, low-risk support that many patients find reassuring and comfortable during healing, but that it is not proven to be essential for every stable fracture — which is why the decision is individualised.
What to expect
Where a hyperextension brace is used, it is fitted by an orthotist and worn during activity for a period of weeks to a few months while the fracture heals, with the spine monitored clinically and with imaging. It supports healing rather than replacing it, and it is discontinued once the fracture is stable and comfortable.
Disclaimer. The information provided on this page is intended for educational purposes only and should not be considered personalised medical advice. Every patient is different, and investigations, treatment options, potential risks, expected recovery and outcomes depend upon an individual's diagnosis, fracture type and stability, symptoms, medical history, examination findings and personal circumstances. A brace should be prescribed and monitored by a specialist team and fitted by a qualified orthotist. Decisions regarding treatment should always be made following consultation with your treating spinal surgeon or healthcare professional.
Evidence & further reading
- —Management of osteoporotic vertebral fracture: review update 2022. (PMC9827207)
- —Evaluating the efficacy of orthoses in the conservative treatment of thoracolumbar fractures: a systematic review. (PMC11469715)
- —Initial hospitalisation with bed rest followed by bracing and rehabilitation for osteoporotic vertebral fractures: safety and feasibility study. (PMC6267386)
- —Nonoperative treatment of burst-type thoracolumbar vertebral fractures: clinical and radiological results. (PMC3489243)
- —Predictors of the failure of conservative treatment in patients with a thoracolumbar burst fracture. (PMC7654172)
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